Metallic stuffing-box packing.



R. BUMGKE. METALLIC STUFPING BOX PACKING.

APPLICATION FILED MAR. 30,.1908.

909,983. Patented Jan. 19, 1909.

Izzy 612K012- the REINOLD BGMCKE, OF DORTMUND, GERMANY.

METALLIC STUFFINGFBOX PACKING.

Specification of Letters Patent.

Patented Jan. 19, 1909.

- Application filed. March 30, 1908. Serial No. 424,103.

To all whom it may concern:-

Be it known that I, Ramon) Borrow), a subjectof the German Emperor, andresident of 71 Arndtstrasse, Dortmund, Germany, have invented certainnew and useful Improvements in Metallic Stuffing-Box Packing, of whichthe following is a specification.

My invention relates to a stuffing box packing consisting of two or moremetal rings placed behind one another; each metaL ring consists ofseveral parts in the form of segments, which are held together by aspiral spring running around the circumference, and between which, sidejoints of sufficient width are placed radially, in order to allow theadjustment of the segments according to the tightening required; theseside joints are closed by small plates lying on the -periphery.

The features of the invention are in the first place that the metalplates are held and pressed against the ends of the segments by means ofthe even spiral spring, which also holds the segments togetherysecondly,the.

arrangement of a heig tening placed eccentrically in the bottom of theslot in the metal plates, in order to insure the pressing of the metalplates on the ends of the segments of the metallic packing rings.

The accompanying drawings illustrate the invention as follows Figure 1is a horizontal section through the stufiing box case and the newpacking (line I-I of Fig. 2) with a part View of a piston rod, orsimilar object requiring packing. Fig. 2 is a view ofthe packing fromthe front. Fig. 3 is part of asection throu h packing, in accordancewith line IITI of Fig. 2. Fig. 4 is part of a vertical section throughone ring of the packing taken on line IIIIII of Fig. 5 and showing theside joint placed between two segments, and the metal plate coveringthis joint, and also the spiralspring running round the circumference.Fig. 5 1s a plan according to Fig. 4.

Fig. 6 is a section according to line IV-IV of Fig. 4. Fig. 7 is asection according to line V-V of Fig. 4.

1 is the moving rod which requires packing, 2 is the packing casing and3 is the cover of the. packing casing. The hollow space 4 of the packingcasing is'provided with even front faces 5 and 6, the distance spiralspring 10 lies.

pressing of the metal plates 14 against thebetweenfwhich isu-nalterable. In the hollow space 4 are two or more packing rings ofmetal 7 and 8, lying radia ly free to move, which are so made that theyare tight against one another as well as against the faces 5 and 6."Each of these rings consists of several segment parts 9, in the exampleshown 'in the drawing three such parts are provided. I

The parts 9 'are held together in the well known manner by means of aspiral spring 10 -running round the circumference, and are permanentlypressed against the rod 1.

The spiral spring 10 canbe-advantageously placed in a groove 11 made inthe periphery of the pants 9 in the direction of the circum- 'ferenoe.

By means of a pin 13 .(Figs. 2 and 3) which engages with both rings 7and 8,.the alternation of the position of the rings 7 and 8 to'oneanother in the sense of direction of the circumference is prevented,so that the joints 12 of the one ring are permanently kept at a distancefrom the joints 12 of the other ring. Several pins 13 can of course bearranged.

In order to avoid the escape of the pressure medium (steam, gas, wateretc), the joints 12 are covered by metal plates 14. It

is advantageous to provide recesses 15 in which the plates 14 can lie.

The plates 14, similarly to the have a peripheral groove 11 in which theThe holding and ends of the parts 9 is accomplished by means parts 9 ofthe spiral spring 10. At the bottom of the groove for the spiral spring10 on the outer side of the metal plates an eccentric heightening 16 isprovided, in order to insure the pressing on of the plates 14. Joints 17between the end surfaces of the metal plates 14 and the end surfaces ofthe parts 9 lying opposite to them, allow the adjustment of the plates,when, due to wear, the parts 9 alter their position, and in this caseprevent the" jamming of the parts 9.

'What I claim as my invention and desire to secure by Letters Patentis 1. In a metallic packing the combination of a number of metal ringsconsisting of several parts, radial joints between the separate parts ofsaid metal rings, metal plates to cover the said joints, a .grooverunning round the outer surface of the said metal ring parts and metalplates, an annular spiral spring in the said groove and adapted forpressing the said metal ring parts against the rod to be packed and thesaid metal plates against the ends of the said metal ring parts, and aneccentric heightening at the bottom of the groove of the said metalplates and adapted to force the said spiral spring outward and to causethe latter to press more strongly on said metal plates than on the saidmetal ring parts, substan tially as set forth.

2. In a metallic packing the combination of. a number of metal ringsconsisting of several parts, radial joints between the separate parts ofsaid metal rings, recesses at the butting ends of said metal ringparts,metal plates inserted in the said recesses and adapted to cover the saidjoints, the said recesses adapted to prevent lateral movement of thesaid metal plates, a groove running round the outer surface of the saidmetal ring parts and metal plates, an annular spiral spring in the saidgroove and adapted for pressing the said metal ring parts against therod to be packed and the said metal plates against the ends of the saidmetal ring parts, and an eccentric heightening at the bottom of thegroove of the said metal plates and adapted to force the said spiralspring outwardand to cause.

the latter to press more strongly on said a;

several parts, radial joints between the separate parts of said metalrings, the said joints ofone metal ring lying in uxta-position towardsthe joints of the next metal ring, means for preventing the movement ofone of the said rings against the other, recesses 1 at the butting endsof the said metal ring parts and having straight inner surfaces, metalplates inserted'in the said recesses and adapted to cover the saidjoints, the said recesses adapt to prevent lateral movement of the saidmetal plates, a groove running round the outer surface of the said metalring parts and metal plates, an' annular spiral-spring in the saidgroove and adapted for pressing the said metal ring parts against therod to be packed and the said metal plates against the ends of the saidmetal ring parts, and an eccentric heightening at the bottomof thegroove of the said metal plates and adapted to'force the said spiraloutwardand to cause the latter to press more strongly on said metalplates than on the said metal ring parts, substantially as set forth. 71

In testimony whereof I have hereunto .signed my name this 19th day of'hl arch 1908, in the presence of two subscribing" witnesses. p

. REINOLD B-oMoKE.

'VVitnesses PETER LIEBER, VVILHELM FLAsoHn.

